IANAMD but simply using various accents, by itself, is perhaps less relevant clinically than the emotional disregulation and socially maladaptive behavior you describe.

Unchecked, compulsive aggression with fixation that requires coworkers to physically extract themselves (harassment) is certainly diagnosable, but not by us or by you.

This should be addressed formally by a superior, if only so that your coworker has the documentation necessary to get the help they need. Your coworker will not remain so for long if this continues.

Not OP but yes

You and the commenter above are using different definitions of “rich.” They are referring to upper-middle [working] class. You are likely referring to the wealthy, or upper class.

Upper middle class rich people still largely prefer elite public primary and secondary schools due to tiered admissions standards of elite tertiary institutions like Harvard and Columbia University.

Nema toads?

One egg is enough

I agree. I don’t think people should be expected to do all this to be treated like they matter in a society. I do it because I don’t want to go back to living in my car, but the process offers me daily reminders of how our system is thoroughly rigged in favor of commercial interests and against the human who wishes to live as a human.

No joke, once you start structuring your life as a business, especially as formal corporations, the amount of financial, legal, and professional advantages, opportunities, and protection that appear are incredible. For example, did you know that …

1. … as an S corp, you can “pass through” the profit and loss of your business, such that your personal gross income excludes business expenses?
2. … the employer match on a 401k account is considered a business expense?
3. … the actual annual cap on employer contributions to various retirement vehicles are in fact much, much higher than employers are typically willing to offer you as a benefit?
4. … the terms of commercial factoring, mortgages and loans are often far more agreeable than consumer equivalents?
5. … many of the places where you shop offer discounts to business accounts (and not just for volume, simply because you’re a business)?
6. … it’s considered normal/SOP to request edits to many types of agreements individuals are expected to simply accept without question, including leases offered by landlords?

This is just a sample. Most endeavors and many functional aspects of personal life are by design simpler, safer, more scalable, and more profitable if planned and executed as a business rather than an individual in the late great United States of America.